Free calculators for money, business & AI
Every tool runs instantly in your browser — nothing you type is uploaded or stored. Adjust sliders, share results with a link, export CSV and read the math behind each one.
Compound Interest Calculator
See how deposits and returns snowball over time.
investingLoan & EMI Calculator
Monthly installment, total interest and payoff schedule.
loansMortgage Calculator
Full monthly cost with taxes, insurance and amortization.
mortgageRetirement Calculator
Project your nest egg and sustainable income.
retirementSavings Goal Calculator
How much to save per month to hit a target.
savingsInflation Calculator
Future prices and the purchasing power of today's money.
investingROI Calculator
Total return and annualized growth (CAGR).
investingDebt Payoff Calculator
Debt-free date and interest saved by paying extra.
debtStartup Runway Calculator
Months of runway, burn and break-even with growth.
businessAI API Cost Estimator
Monthly LLM spend from tokens, traffic and caching.
aiFreelance Rate Calculator
The hourly and day rate you need to hit your income.
businessPercentage Calculator
Percent of, percent change and ratios — instantly.
generalNumber Explorer
Primes, factors, binary, Roman numerals and the cultural meaning of digits.
funRequest a calculator
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Turn your numbers into a plan.
Calculators show the math. People make the decisions. Tell us what you're working on and we'll review it and connect you with a vetted professional or resource that fits — mortgage brokers, fee-only planners, tax pros, debt counselors and AI-automation specialists.
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- One reply, not a flood of calls
- Works for individuals, freelancers and small businesses
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